Bridge gauge



Sept. 25,1923.

. H. D. SUMMERS BRIDGE GAUGE Filed Jan. 13. 1922 INN ATTORNEY hatsntedSept. 25, 1923.

i 3' L It i V i i i a r-5*; iJih-i'i P'Tiiiti ITEMREY D. SUIIIHIEES, GESSIITGTON, PENNSYLY AITLQ, ASSTGEQE VJESTENG OUSE ELECTRIC &MANUFACTURING COli-ZPANY', CORPORATION OF PEIINSYLVANIA.

BRIDGE e-Auen.

Application filed January 13, 1822. 2 Serial No. 528,012.

To all "UZLOH'I. 2'3 may concern I *uown that I, HARRY D. SU'I-JMERS,

.he United States, and a resident 1 ton, in'the county of Delaware andat oi Pennsylvania, have invented a new nset'ul Improvement in BridgeGauges,

which the following is a specification. My invention relates to bridgegauges, l more particularly to bridge-gauges for c journals of largen'iachines such as turand genuntors, and it has for an obt the provisionof apparatus of the charac- .L d o'nated which shall psi the gauge suchjournals quickly 311i 1 a. high degree oi accuracy.

in the accompanying drawing, l l is a 1 e clevationot a bridge gaugeembodying my invention, and Fig. 2 is a plan view thereof. it

in the use of bearingand journal gauges, a lush degree of accuracynecessary. involving measurements to within a few their undths of aninch; thicknes" gauges oi the i easil In bridge gauges tor this purposeas ructed and known to ine the bridge -bcifot' the gauge carries fine labutments reference points between which and the journal leelcr gaugesof various thickness with respect to the line of measurement;

It frequently happens that after the expenditure oi tiine results ofonly questionable accuint v obtained, because of the cramped positionnecessary to effects measurement by this method.

li i h the above and other objects in view, I have devised a briegegauge by means or whh h the measurement: to be eii'ected is t: nsposedto a position in which it can be readily and accurately taken. Stillother structural features of my invention will be apparent from thesubjoined description.

Referring to Fig. l of the drawing for a detailed understanding of myinvention, I show at 10 a journal which it is desired to gauge-and at 11a housing for the bearing in which the journal is mounted. A beam member12, of a general arcuate form, is

adapted to span the journal 10 and to be well ltuown feeler typebeinu'gei'ierslly used. hitherto sup iorted at its cnds'on the housing11., As shown, the beam member consists of a web 13 and flanges l h-butany structure possessing sutiicientv rigidity may be. employed. The erurate positioning o'lthe beam member 12 She web of the beam member 12isprori ed points near its outer fiangel i with 22, constitutingabutmen'tsfixed with respect to the beam member 1.2. The abutmcnts' 22 may besecured in the bosses21 in'aiiy Well known manner, as by rivets- 23. Theaxes of the iixedfl abutments are determined by straight nesintersectingat right angles at the es ot the journal 10, which centerc-(mstitutes datum point ,0. One of these arses is preferably coincidentwith the horizontal diaineter DD oi the journal 10, which line DDconstitutes the datum line of a. system of rectangular co -ordinates,the. origin of which is the point 0.

The web 13 of the beam member 12 is also provided with bosses 24and 26,drilled for the. reception of pins 27, which are sli-dably nt edtherein. The pins 27 are in axial with the abutments 22 and constituterecler pins adapted to move into contact thebeam member12 are provided Vl'OVlClECl with dowels 19, by means of which. and

bosses 21', drilled for the reception of'stu'ds with the journal 10 at,their inner ends The outer ends 29 of the ieeler pins 27 are adapted tocontact with the inner ends of the abutment 22. The feeler pins 27 areprovided with enlarged, knurled portions .31 which constitute stops,playing between the bosses 2s and 26, to limit axial travel o the r -1827, and Which also serve to ta ate manual movement of the pins 27. Theweb 13 iscut away at certain portions adjacent the iieeler pins 27, asindicatedat 32 and 33, to provide spaces for the convenient operation ofthe pins 27. r V In the operation of my device, the beam member 12 isplacedin position across the journal or other part to be gauged, thefeet 16 restingon the surface 17 of the split housiiig' 11, and securedthereto by the screws 18 the dowels 19. Each of the feeler pins 27 isthen manually advanced into contact with the join; a1 1Q, by means ofits knurled ement 31. In this manner the position of the journal 10 w threference to the datum O is transferred to the outer ends 29 pins 27,where it can be easily ely determined by a measuredistances between thepin ends rurments 22. This is readily acoy an ordinary feeler gauge 35.are shown myinvention in but will obvious to those skilled at it is notso limited but is susother changes and modiegarting from the spiritdesire, therefore, that only one shall be pla ed thereupon as the priorartor as are specififor journals comprising a beam member adapted to belined with respect to a datum point, movable feeler pins carried by thebeam member and adapted to be morel into engagement with the journa'l,and means associated with the feeler pins whereby the position of saidjournal with respect to the datum point may be measured at points notcontiguous to the journal. 7 s

2. A bridge gauge comprising a beam member ada.

L ted to be supported in fixed reation to coordinate datum axes, andmeans including feeler pins carried by the beam member "tordetermining'the position of the object to be gauged with relationto saidages at points removed from said object.

A bridge gauge for journals comprising a beam member adapted to besupported on the journal housing, movable feeler pins engage the ournaland provided with so carried by the beam member that their axesintersect at right angles at a datum point, and fixed abutments carriedby the beam member and axially alined with the feeler pins respectively,whereby by the in sertion of thickness gauges between the pins and theabutments, the former may determine the position of the journal axiswith respect to the datum point. I

4. A bridge gauge for journals comprising a beam member adapted to besupported in fixed relation to the journal support, lined abut-meritscarried by the beam member, and movable ieeler pins axially alined withsaid abutments respectively, and adapted to stops to limit the movementthereohwhereby the measurement of the distance between each feeler pinand its associated abutment determines the position of the journal withrespect to its support.

5. bridge gauge comprising an arcuate beam member adapted to span ajournal bearing, means associated with the beam member for supporting;it in fixed elation to said bearing, axially movable feeler pinssupported in the bridge member, fixed abutments associated with thebridge member coaxial with the "feeler pins and adapted to coacttherewith, means-whereby the feeler pins may be moved into contact-withthe journal, whereby the measurement otthe distances between thecoacting' ends 01 the feeler pins and the fixed abutments deter minesthe position of the-journal with re spect to its support. i

In testimony whereof, subscribed my name this 9th day of January, 1922.

HARRY D. SUBWEES.

I have hereunto

